This 49 oz. can of Vintner's Harvest fruit puree is prepared from the freshest blackberries. Commercially sterilized and containing no preservatives, you can add this puree directly to your primary or secondary fermentor to flavor beer, mead, or wines. As the puree contains no seeds, add 10-15% less puree as you would fresh/ frozen fruit. One 49 oz. can will make 1 gallon of fruit wine. Make sure to never boil the puree as it can create some off flavors.